Recital 34

When integrating components sourced from third parties in products with digital elements during the design and development phase, manufacturers should, in order to ensure that the products are designed, developed and produced in accordance with the essential cybersecurity requirements set out in this Regulation, exercise due diligence with regard to those components, including free and open-source software components that have not been made available on the market. The appropriate level of due diligence depends on the nature and the level of cybersecurity risk associated with a given component, and should, for that purpose, take into account one or more of the following actions: verifying, as applicable, that the manufacturer of a component has demonstrated conformity with this Regulation, including by checking if the component already bears the CE marking; verifying that a component receives regular security updates, such as by checking its security updates history; verifying that a component is free from vulnerabilities registered in the European vulnerability database established pursuant to Article 12(2) of Directive (EU) 2022/2555 or other publicly accessible vulnerability databases; or carrying out additional security tests. The vulnerability handling obligations set out in this Regulation, which manufacturers have to comply with when placing a product with digital elements on the market and for the support period, apply to products with digital elements in their entirety, including to all integrated components. Where, in the exercise of due diligence, the manufacturer of the product with digital elements identifies a vulnerability in a component, including in a free and open-source component, it should inform the person or entity manufacturing or maintaining the component, address and remediate the vulnerability, and, where applicable, provide the person or entity with the applied security fix.